Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus
Patent
1993-12-28
1996-02-06
Niebling, John
Chemistry: electrical and wave energy
Apparatus
Electrophoretic or electro-osmotic apparatus
204280, 204640, 204647, C02F 146, C02F 1469, G21F 904, G21F 916
Patent
active
054893704
ABSTRACT:
Remediation of soil and groundwater using electropotential gradient induced migration of a target ion and immobilization and/or confinement of the target ion by a host receptor matrix (HRM). In addition to immobilizing and/or confining the target ion, the HRM can comprise a buffer or an ionizable species which releases an exchange ion during application of the electropotential gradient. The exchange ion, when less mobile than a (H.sup.+) ion or hydroxyl (OH.sup.-) ion, increases the efficiency of energy usage during decontamination. The exchange ion can also perform other tasks in the vicinity of the electrodes which improve the decontamination process. The host receptor matrix also can comprise a material which is water impermeable and which has a low surface energy, such as a layer of polytetrafluoroethylene film. When such a material is used, the host receptor matrix can comprise a receptacle in which there is a liquid and/or solid composition which immobilizes and/or contains the target ion.
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Graves Richard A.
Lomasney Henry L.
Ionex
Niebling John
Starsiak Jr. John S.
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